/Engine/Plugins/Experimental/MeshModelingToolsetExp/Source/MeshModelingToolsExp/Public/Sculpting/MeshSculptToolBase.h
Set the active falloff type for the primary brush
virtual void SetPrimaryFalloffType ( [EMeshSculptFalloffType](API\Plugins\MeshModelingToolsExp\Sculpting\EMeshSculptFalloffType) Falloff )